expdp 用as sys 到处 客户端链接 字符串 exp \'sys/oracle@erp as sysdba\' TABLESPACES=exp_tbs
expdp system/oracle@erp dumpfile=testemp_deptno_30_%U.dmp directory=backup_dir logfile=expdp_testemp.log tables=scott.testemp query=\"where deptno\=30\"
expdp system/oracle@erp dumpfile=testemp_deptno_30_%U.dmp directory=backup_dir logfile=expdp_testemp.log tables=scott.testemp query=\"where deptno\=30\"